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Inflammation and Medical Provider Attitudes, Cognition, and Treatment Decisions Study (IMPACT)

2026年9月25日 更新者:University of Arkansas, Fayetteville

The Impacts of Adverse Provider Conditions on Medical Decision-Making and Patient Care

This is a randomized, double-blind clinical trial involving emergency medicine and internal medicine healthcare providers as participants. The intervention involves the administration of the seasonal influenza vaccine or a saline placebo; this protocol is used in psychoneuro-immunology to simulate a state of mild illness. The primary aim is to examine whether acute inflammation induced by receiving the vaccine affects decision-making on standardized psychological reaction time tasks and questionnaires. Participants attend two laboratory sessions on consecutive days, receive either a seasonal influenza vaccine or a saline placebo at the first session, provide blood samples to measure inflammatory cytokines, and complete a series of standardized assessments of medical decision-making and social attitudes. Participants who received the placebo during the first session will receive the vaccine during the second session.

Overall, the study is designed to examine how adverse provider conditions particularly acute inflammation, burnout, and concerns about one's own health affect provider judgments and healthcare-related decision-making. The primary hypothesis is that providers experiencing greater adverse conditions at the time of research participation would have altered decision-making compared to those experiencing fewer adverse conditions.

調査の概要

状態

募集

条件

介入・治療

詳細な説明

Participants will provide informed consent during a call (Zoom, Teams, Phone) with the University of Arkansas research team. The research team member will explain the study procedures to the participants and will give them the opportunity to ask questions. During the call, they will review the electronic consent form and will sign the form after all of their questions have been answered. They will receive a paper copy of the consent documents to review one more time when they arrive at the first research session at their site.

Participants will complete two lab sessions on consecutive days (scheduled as close to 24-hours apart as possible) at a collaborating research site. At each site, a member of the local team will coordinate the sessions, including providing instructions before participants complete various study tasks. During each session, participants will complete standardized measures of decision-making that will allow us to comprehensively document how adverse provider conditions (acute inflammation, burnout, stress, concern about own health) affect objectivity in decision-making across multiple domains. These standardized measures include reaction time tasks and questionnaires. Participants will also complete questionnaires that assess demographic information, personality information, and questions about their experiences with adverse provider conditions (burnout, stress, other workplace demands, mood, concerns about own health). During each session, participants will provide blood samples (~3mL) that will be assayed for pro-inflammatory cytokines interleukin-6 and interleukin-1beta. Participants will be randomly assigned to either the experimental or control condition using stratified permuted block randomization. Those in the experimental condition will receive the influenza vaccine at the end of Session 1 and those in the control condition will receive a saline placebo injection instead. We will use a double-blind design so that neither the participant nor the research assistant administering the decision-making tasks will know the condition.

At the end of the second session, participants will be debriefed and informed about the condition they were assigned to (up until this point, the research coordinator and participant will be blind to participant condition). Those in the control condition will receive the vaccine before they leave.

研究の種類

介入

入学 (推定)

210

段階

  • フェーズ2

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

  • 名前:Anastasia Makhanova, PhD
  • 電話番号:479-575-8798
  • メール:ammakhan@uark.edu

研究場所

    • Arkansas
      • Fayetteville、Arkansas、アメリカ、72703
        • 募集
        • University of Arkansas for Medical Sciences
        • コンタクト:
        • 主任研究者:
          • Roy Kamoga, MD
    • New Mexico
      • Albuquerque、New Mexico、アメリカ、87106
        • 募集
        • University of New Mexico Health Sciences Center
        • コンタクト:
        • 主任研究者:
          • Joe Alcock, MD
    • Virginia
      • Roanoke、Virginia、アメリカ、24016
        • 募集
        • Carilion Medical Center
        • 主任研究者:
          • Michael Wilson, MD
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

はい

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Healthcare providers currently employed in emergency medicine or internal medicine
  • Must be one of the following: Resident, fellow, attending, or advanced practice provider (NP, PA)
  • Individual is able to travel to the research site for sessions
  • Has not had an acute viral or bacterial infection within the previous 14 days
  • Has not taken an antiviral medication such as Tamiflu in the previous 48 hours
  • Has not taken corticosteroids or immunosuppressants in the previous 30 days

Exclusion Criteria:

  • Does not want to receive a flu vaccine as part of the study
  • Has received a flu vaccine this season already (after August of current year)
  • Has had a prior allergic reaction or bad side effect, including Guillain-Barre, due to a flu vaccine or another vaccine
  • Is allergic to eggs or have had an adverse reaction to egg-derived vaccine
  • Is pregnant or suspects a possible pregnancy
  • Has congenital or acquired immunodeficiency such as common variable immunodeficiency (CVID) or HIV/AIDS
  • Has an active hematologic malignancy (like leukemia, lymphoma, myeloma)
  • Has Type 1 diabetes
  • Has Graft vs. Host Disease
  • Uses aspirin, ibuprofen (i.e., NSAIDs), acetaminophen, or naproxen daily
  • Uses corticosteroids or immunosuppressants daily
  • Is currently receiving systemic chemotherapy and/or immunotherapy
  • Has had changes in daily prescription medication in the last 3 months (starting, stopping, changing dose)

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:ヘルスサービス研究
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:ダブル

武器と介入

参加者グループ / アーム
介入・治療
実験的:Influenza Vaccine Injection

Receives the influenza vaccine at the end of Session 1

A single administration of a seasonal trivalent cell-based influenza vaccine delivered by injection into the arm at the end of the first study session.

プラセボコンパレーター:Placebo Injection

Receives a saline placebo injection at the end of Session 1

Control group will receive a saline placebo injection at the end of Session 1

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Testing Automatic Judgments: "Implicit Association Test"
時間枠:2 days

This task calculates a "d" score across trials to quantify the strength of implicit associations. Higher d scores indicate more negative automatic attitudes.

2 days
Testing Deliberate Judgments: "Feeling Thermometers"
時間枠:2 days

Explicit attitudes are assessed via 100-point Feeling Thermometers that ask for feeling toward different patient groups. Lower values indicate more negative attitudes.

2 days

二次結果の測定

結果測定
メジャーの説明
時間枠
Questionnaire Assessing Social Avoidance: "Patient Sorting Task"
時間枠:1 day

A behavioral decision-making task order patients within an array of three. The three patients are arranged in an order in which the participant would choose to see them. The outcome is the number of trials when a patient from a target group is seen later than a patient from a control group. Higher values indicate greater potential for treatment inconsistencies.

1 day
Questionnaire Assessing Perception of Others' Pain: "Threshold for Detecting Pain on Faces"
時間枠:2 days

Participants will see 11 images of targets of different racial groups that have each been morphed to go from no pain to high pain, responding to a yes/no question about whether the target is in pain in each image. The threshold at which participants begin perceiving pain will be calculated for each target and averaged within racial groups. Differences between groups indicate potential for greater treatment inconsistencies.

2 days
Questionnaire Assessing Cognitive Depletion: "Stroop Task"
時間枠:2 days

To measure the delay in reaction time between neutral and incongruent stimuli. The task calculates an interference score across many trials to show the difference in response latency between incongruent and congruent trials. Greater interference is a measure of cognitive depletion.

2 days
Questionnaire Assessing Motivation: "Motivation to Respond without Prejudice Scale"
時間枠:2 days

It is administered on a scale of 1 to 9, and the questions are about both internal and external motivation. Higher scores represent more motivation.

2 days

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年9月1日

一次修了 (推定)

2027年10月1日

研究の完了 (推定)

2027年12月1日

試験登録日

最初に提出

2026年9月14日

QC基準を満たした最初の提出物

2026年9月21日

最初の投稿 (実際)

2026年9月25日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月30日

QC基準を満たした最後の更新が送信されました

2026年9月25日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • R01MD019051 (米国 NIH グラント/契約)

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

はい

米国FDA規制機器製品の研究

いいえ

米国で製造され、米国から輸出された製品。

はい

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。